19139967

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 35043840

約数和(自身を除く): 15903873

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 389, 497, 639, 693, 781, 1167, 1491, 2343, 2723, 3501, 4279, 4473, 5467, 7029, 8169, 12837, 16401, 24507, 27619, 29953, 38511, 49203, 82857, 89859, 193333, 248571, 269577, 303809, 579999, 911427, 1739997, 2126663, 2734281, 6379989, 19139967]

約数ペア:

[(1, 19139967), (3, 6379989), (7, 2734281), (9, 2126663), (11, 1739997), (21, 911427), (33, 579999), (63, 303809), (71, 269577), (77, 248571), (99, 193333), (213, 89859), (231, 82857), (389, 49203), (497, 38511), (639, 29953), (693, 27619), (781, 24507), (1167, 16401), (1491, 12837), (2343, 8169), (2723, 7029), (3501, 5467), (4279, 4473)]